Lateral-motion reversible marine propeller.



No. 629,27]. Patented July I8, I899.

A. REYNOLDS. LATERAL MOTION REVERSIBLE MAFHNE PROPELLER.

(Ho Mo deI (Application filed Nov. 28, 1897.)

gigs China n1 UNITE STATES PATENT @FFICE.

ALFRED REYNOLDS, OF DUNEDIN, NEW ZEALAND.

LATERAL-'MOTISON REVERSIBLE MARINE PROPELLER SPECIFICATION forming partOf Letters Patent No. 629,271, dated July 18, 1899.

Application filed November 26, 1897. Serial No. 659,865. (No model.)

To all whom it may concern.-

Be it known that I, ALFRED REYNOLDs, ac

counta-nt, a subject of the Queen of Great Britaimresiding at 31 MorayPlace, in the city of Dunedin, in the British Colony of New Zealand,have invented a new and useful Lateral-Motion Reversible MarinePropeller, of which the following is a specification.

The object of this invention is to provide an improved and simpleconstruction of propeller for ships 01' boats to be propelled by power;and the invention consists in the features of construction and novelcombination of parts in a lateral-motion reversible marine propeller, ashereinafter described and claimed.

Referring to the accompanying drawings,

illustrating the invention, Figure l is a sectional plan of my improvedpropeller. Fig. 2 is an end view of the same with the hinged propellerblade or blades standing open. Fig. 3 is a side elevation of thepropeller with the blade or blades standing open and showing-in dottedlinesthe position of the blades for the return stroke.

The reference-numeral l designates a reciprocating main working bar,which is to be operated from an engine in any suitable or convenientmanner. The rear end of this bar is to project from the hull of a boator vessel on eitherside at or near the stern. To the rear projecting endof this main reciprocating bar 1 there will be pivoted a propeller bladeor blades 2 by means of any suitable hinge-joint 3, such as shown.

- A lever-rod 4 has one end connected by means of a pivot 5 with theblade or blades 2 at or about the center thereof, as shown. The otherend of this lever-rod 4 is connected by a pivot 6 with the rear end ofan auxiliary reciprocating bar 7, that is parallel with the main workingbar and operated therefrom. This auxiliary bar 7 works generally withthe bar 1, but with a different length ofstroke,

and is intended to control the change of motions and positions of theblades.

In the bar 7 there are two slots 8 and 9, Fig. 3, located in differentplanes and at different distances from the end of the said bar. The

main working bar 1 is. provided with a removable pin 10 to engage ineither of said slots for regulatingthe difierence of stroke between thebars 1 and 7 and for causing forward or reverse movement of the vessel,as required. In Figs. 1 and 4 the pin 10 is shown as occupying aposition in the rear end of the slot 8. Obviously as the bar 1 is movedinward bar 7 will not start until the pin 10 has traveled the length ofthe slot 8 or until it strikes a cushioning-spring 11, that may bearranged at the inner end of said slot. For reversing the movement ofthe vessel the pin 10may be inserted into a hole 12, Fig. 3, so as tooperate in the slot 9, which may have a cushioning-spring 13 at one end.

The main r'eciprocatingbar l and auxiliary reciprocating bar 7 and thepivotallyattached propeller-blades are preferably arrangedlongitudinally on both sides of the stern of a vessel, and through theoperation of these bars the propeller-blades are made to stand out atright angles to expose the larger surface of said blades to theresistances of the Water in propelling the vessel and are then broughtfiatwise into line with the operating-bars to otter the least resistanceto progress through the water. In moving the boat or ship in a reversedirection these motions are reversed, so that the yes s'el willbepropelled the reverse way. What I claim as my invention is In apropeller, the combination of the reciprocatin g bars 1 and 7 arrangedin the longi-' hinged to the rear end of the bar 1, and the lever-rod 4hinged to the rear end of bar 7 and also hinged to a central portion ofthe said blade or blades, substantiallyv as described.

ALFRED REYNOLDS.

Witnesses BENTON MACAULAY DAVEY, CHA LES EDWIN DAVEY.

